vim.o.completeopt = 'menu,menuone,noselect'

local lsp_kind = require('lspkind')

-- Set up nvim-cmp.
local cmp = require 'cmp'

local kind_icons = {
    Text = "",
    Method = "",
    Function = "",
    Constructor = "",
    Field = "",
    Variable = "",
    Class = "ﴯ",
    Interface = "",
    Module = "",
    Property = "ﰠ",
    Unit = "",
    Value = "",
    Enum = "",
    Keyword = "",
    Snippet = "",
    Color = "",
    File = "",
    Reference = "",
    Folder = "",
    EnumMember = "",
    Constant = "",
    Struct = "",
    Event = "",
    Operator = "",
    TypeParameter = ""
}

cmp.setup({
    native_menu = false,
    formatting = {
        format = lsp_kind.cmp_format({
            mode = 'symbol',       -- show only symbol annotations
            maxwidth = 50,         -- prevent the popup from showing more than provided characters (e.g 50 will not show more than 50 characters)
            ellipsis_char = '...', -- when popup menu exceed maxwidth, the truncated part would show ellipsis_char instead (must define maxwidth first)
        })
    },
    snippet = {
        -- REQUIRED - you must specify a snippet engine
        expand = function(args)
            -- vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
            require('luasnip').lsp_expand(args.body) -- For `luasnip` users.
            -- require('snippy').expand_snippet(args.body) -- For `snippy` users.
            -- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
        end,
    },
    window = {
        completion = cmp.config.window.bordered(),
        documentation = cmp.config.window.bordered(),
    },
    mapping = cmp.mapping.preset.insert({
        -- Shift+TAB to go to the Previous Suggested item
        ['<S-Tab>'] = cmp.mapping.select_prev_item(),
        -- Tab to go to the next suggestion
        ['<Tab>'] = cmp.mapping.select_next_item(),
        ['<C-b>'] = cmp.mapping.scroll_docs(-4),
        ['<C-f>'] = cmp.mapping.scroll_docs(4),
        ['<C-Space>'] = cmp.mapping.complete(),
        ['<C-e>'] = cmp.mapping.abort(),
        ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
    }),
    sources = cmp.config.sources({
        { name = 'nvim_lsp' },
        -- { name = 'vsnip' }, -- For vsnip users.
        { name = 'luasnip' }, -- For luasnip users.
        -- { name = 'ultisnips' }, -- For ultisnips users.
        -- { name = 'snippy' }, -- For snippy users.
        { name = 'buffer' },
        { name = 'intelephense' },
        { name = 'path' },
    })
})

-- Set configuration for specific filetype.
cmp.setup.filetype('gitcommit', {
    sources = cmp.config.sources({
        { name = 'git' }, -- You can specify the `git` source if [you were installed it](https://github.com/petertriho/cmp-git).
        { name = 'buffer' },
    })
})

-- Use buffer source for `/` and `?` (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline({ '/', '?' }, {
    -- mapping = cmp.mapping.preset.cmdline(),
    sources = {
        { name = 'buffer' }
    }
})

-- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
cmp.setup.cmdline(':', {
    -- mapping = cmp.mapping.preset.cmdline(),
    sources = cmp.config.sources({
        { name = 'cmdline' }
    })
})

-- snippets
require("luasnip.loaders.from_vscode").lazy_load()
